I think a lot of people will agree that the Batch API, as it currently stands, is less than developer friendly. Let's rewrite it to be a wrapper around the Queue system in core. chx said this on IRC: [23:24:08] cweagans: batch needs to become a queue runner and reporter [23:24:55] cweagans: *however* we need to be superb careful there [23:25:08] cweagans: need to look at the reliablequeue semantics [23:25:26] cweagans: perhaps even create a separte class for it even if it ships as an empty class extending the default queue

Программное создание и управление очередями в Drupal 8.

Problem/Motivation When deleting large datasets the delete multiple API does not invoke all dependent hook_[node|comment|user]_delete. e.g. deleting a node does not invoke hook_comment_delete() Proposed resolution Use the queue API to delete large datasets so we can invoke all hooks. Remaining tasks This issue is looking for further direction. Some of the questions/issues are: